{"id":"CVE-2025-21763","revision":"9eb96202f5bc48cfa05e4087bbdad2be","records":[{"revision":"9eb96202f5bc48cfa05e4087bbdad2be","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-21763","aliases":[],"title":"neighbour: use RCU protection in __neigh_notify()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nneighbour: use RCU protection in __neigh_notify()\n\n__neigh_notify() can be called without RTNL or RCU protection.\n\nUse RCU protection to avoid potential UAF.","state":0,"publishedAt":"2025-02-27T02:18:15.078+00:00","modifiedAt":"2026-10-15T01:04:09.65+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/core/neighbour.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"426b5303eb435d98b9bee37a807be386bc2b3320\",\n                            \"lessThan\": \"e1aed6be381bcd7f46d4ca9d7ef0f5f3d6a1be32\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"426b5303eb435d98b9bee37a807be386bc2b3320\",\n                            \"lessThan\": \"8666e9aab801328c1408a19fbf4070609dc0695a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"426b5303eb435d98b9bee37a807be386bc2b3320\",\n                            \"lessThan\": \"40d8f2f2a373b6c294ffac394d2bb814b572ead1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"426b5303eb435d98b9bee37a807be386bc2b3320\",\n                            \"lessThan\": \"784eb2376270e086f7db136d154b8404edacf97b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"426b5303eb435d98b9bee37a807be386bc2b3320\",\n                            \"lessThan\": \"1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"426b5303eb435d98b9bee37a807be386bc2b3320\",\n                            \"lessThan\": \"cdd5c2a12ddad8a77ce1838ff9f29aa587de82df\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"426b5303eb435d98b9bee37a807be386bc2b3320\",\n                            \"lessThan\": \"559307d25235e24b5424778c7332451b6c741159\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"426b5303eb435d98b9bee37a807be386bc2b3320\",\n                            \"lessThan\": \"becbd5850c03ed33b232083dd66c6e38c0c0e569\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/core/neighbour.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.25\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.25\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.291\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.235\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.179\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.129\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.79\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.16\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.13.4\",\n                            \"lessThanOrEqual\": \"6.13.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/e1aed6be381bcd7f46d4ca9d7ef0f5f3d6a1be32","https://git.kernel.org/stable/c/8666e9aab801328c1408a19fbf4070609dc0695a","https://git.kernel.org/stable/c/40d8f2f2a373b6c294ffac394d2bb814b572ead1","https://git.kernel.org/stable/c/784eb2376270e086f7db136d154b8404edacf97b","https://git.kernel.org/stable/c/1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379","https://git.kernel.org/stable/c/cdd5c2a12ddad8a77ce1838ff9f29aa587de82df","https://git.kernel.org/stable/c/559307d25235e24b5424778c7332451b6c741159","https://git.kernel.org/stable/c/becbd5850c03ed33b232083dd66c6e38c0c0e569"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-21763","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-21763","identifiers":["CVE-2025-21763"]},"retained":false,"historicalAffected":[]}],"coverage":[]}